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Product Detailed Parameters
- Description：DIODE ZENER ARRAY 47V SOT-23-3
- Series：AZ23
- Mfr：Vishay General Semiconductor - Diodes Division
- Package：Tape & Reel (TR)
- Configuration：1 Pair Common Anode
- Voltage - Zener (Nom) (Vz)：47 V
- Tolerance：±5%
- Power - Max：300 mW
- Impedance (Max) (Zzt)：100 Ohms
- Current - Reverse Leakage @ Vr：100 nA @ 35 V
- Operating Temperature：-55°C ~ 150°C
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- pa_package-case：
- Supplier Device Package：SOT-23-3
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Overview
The AZ23C47-E3-08 is a dual common anode silicon planar Zener diode array from Vishay, housed in an SOT-23 surface-mount package. It provides two independent Zener channels with a nominal voltage of 47 V and a tolerance of ±5%. The device operates within a junction temperature range of -55 °C to +150 °C and dissipates up to 300 mW on an FR-4 board. Electrical characteristics include a maximum reverse leakage current of 50 μA at 35 V and a dynamic resistance of 97 Ω at a test current of 2 mA.
Feature Summary
- Dual common anode configuration for space-efficient circuit designs
- Zener voltages graded according to the international E24 standard
- ESD protection capability exceeding 8 kV via human body model
Applications
- Voltage reference circuits requiring dual supply rails
- Overvoltage protection for sensitive electronic components
- Clamping applications in signal processing paths
Procurement Notes
Verify the specific ordering suffix against official documentation to confirm tape-and-reel specifications and minimum order quantities. Ensure that the commercial grade designation aligns with project requirements, as automotive-grade variants utilize different suffixes. Cross-reference the manufacturer part number with authorized distributors to validate authenticity and traceability before finalizing procurement orders.
Selection Notes
Select this component when a dual-channel voltage regulation solution is required in a compact footprint. The ±5% tolerance suits general-purpose applications where precise voltage matching between channels is not critical. Evaluate the thermal resistance parameters to ensure adequate heat dissipation under continuous operating conditions.
Part Context
This device belongs to the AZ23 series of small signal Zener diodes manufactured by Vishay Semiconductors. The series offers a wide range of standardized voltage options from 2.2 V to 75 V in a consistent SOT-23 package format. The 'E3' suffix indicates RoHS compliance and halogen-free construction for commercial grade products.
Replacement Considerations
AZ23B47-E3-08 (±2% tolerance variant)
FAQ
What is the marking code for the AZ23C47-E3-08?
The marking code for this device is D71.
How does the power dissipation rating change based on mounting?
The total power dissipation is rated at 500 mW when measured with leads clamped, but reduces to 300 mW when mounted on an FR-4 board using the recommended soldering footprint.
Is the AZ23C47-E3-08 qualified for automotive applications?
No, the base P/N-E3 is designated as commercial grade. Automotive qualification requires the HE3_A suffix indicating AEC-Q101 compliance.
